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Speed Converter

Speed Converter is a free online converter that helps you convert between m/s, km/h, mph, knots and ft/s; covers driving, flying, sailing and physics units. Speed Converter uses 3 input fields, returns 3 output values, and runs in your browser on the device.

Key facts

Inputs
3 fields: Value, From, and To
Outputs
3 values: Converted value, In m/s, and All units
Runtime
your browser on the device
Mode
Converter
Privacy
Files and text stay in the browser session.
Cost
$0, no account required

How to use Speed Converter

  1. 1

    Paste or fill in the input

    Enter your text or values into the input fields on the page.

  2. 2

    Run the utility

    Click Compute to run the utility in your browser and review the result.

  3. 3

    Copy the output

    Copy the output value you need from the result panel.

Speed Converter details

First, enter Value in Speed Converter. Next, review Converted value, In m/s, and All units. Additionally, Speed Converter uses 3 input fields and 3 output blocks so the result is easy to scan and copy.

Switching between speed units is endlessly annoying; your car shows km/h, your weather app shows mph, the boat radio uses knots, and physics homework wants m/s. Pick the source and target unit, and we'll convert it precisely using the exact definitions (1 mph = 0.44704 m/s exactly, 1 knot = 1852/3600 m/s = 0.5144… m/s). The conversion table covers every unit at once so you can read it at a glance. Runs entirely in your browser.

Common searches

  • speed converter
  • mph to kmh
  • kmh to mph
  • mph to km/h
  • km/h to mph
  • knots to mph

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Frequently asked

What is Speed Converter?

Speed Converter is a free online converter that helps you convert between m/s, km/h, mph, knots and ft/s; covers driving, flying, sailing and physics units. Speed Converter uses 3 input fields, returns 3 output values, and runs in your browser on the device.

What inputs and outputs does Speed Converter use?

Speed Converter uses 3 input fields: Value, From, and To. Speed Converter returns 3 output values: Converted value, In m/s, and All units.

Do my files and data stay private?

Yes. Speed Converter runs entirely in your browser using your device's CPU. Files and text are never uploaded to our servers, so your data stays private.

How do I use Speed Converter?

Open Speed Converter, paste or fill in the input fields, and the result updates instantly. Speed Converter runs in your browser with no upload and no waiting.

Which browsers does Speed Converter support?

Any modern browser works in Chrome, Firefox, Safari, and Edge on desktop and mobile. Speed Converter uses standard web APIs and does not require any plugin, extension, or sign-up.